EP 2153257 B1 20210331 - METHOD FOR THE PRODUCTION OF A MULTICOLOR VOLUME HOLOGRAM, DOCUMENT WITH SUCH A HOLOGRAM, AND VOLUME HOLOGRAM MASTER
Title (en)
METHOD FOR THE PRODUCTION OF A MULTICOLOR VOLUME HOLOGRAM, DOCUMENT WITH SUCH A HOLOGRAM, AND VOLUME HOLOGRAM MASTER
Title (de)
VERFAHREN ZUM HERSTELLEN EINES MEHRFARBIGEN VOLUMENHOLOGRAMMS, DOKUMENT MIT EINEM SOLCHEN HOLOGRAMM UND VOLUMENHOLOGRAMM-MASTER
Title (fr)
PROCEDE DE FABRICATION D'HOLOGRAMME EPAIS POLYCHROME, DOCUMENT COMPORTANT UN TEL HOLOGRAMME, ET HOLOGRAMME EPAIS MAITRE
Publication
Application
Priority
- DE 2008000262 W 20080213
- DE 102007025907 A 20070601
Abstract (en)
[origin: WO2008145077A1] The invention relates to a method for the production of a multicolor hologram by means of a capture beam, wherein the utilized capture beam (6) has a plurality of beam bundles of the same wavelength. Advantageously, the multicolor hologram is produced by copying the structure of multiple single-color subholograms of a master hologram (1) in a copy layer (5) which is affixed parallel to the master hologram, by illuminating this copy layer with the single-color capture beam. Each beam bundle appears at a prespecified angle of incidence, wherein said angles of incidence are calculated in such a manner that the structure of a corresponding subhologram is produced in the copy layer. In this way, a falsification is nearly impossible.
IPC 8 full level
G02B 5/32 (2006.01)
CPC (source: EP US)
G03H 1/0011 (2013.01 - EP US); G03H 1/041 (2013.01 - EP US); G03H 1/202 (2013.01 - EP US); G03H 1/2249 (2013.01 - EP US); G03H 2001/0473 (2013.01 - EP US); G03H 2001/205 (2013.01 - EP US); G03H 2001/2263 (2013.01 - EP US); G03H 2001/2271 (2013.01 - EP US); G03H 2001/2289 (2013.01 - EP US)
Citation (examination)
- US 2004121241 A1 20040624 - KODAMA DAIJIRO [JP]
- EP 1739507 A1 20070103 - PRUEFBAU DR ING H DUERNER GMBH [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008145077 A1 20081204; DE 102007025907 A1 20081211; EP 2153257 A1 20100217; EP 2153257 B1 20210331; US 2010073646 A1 20100325; US 9104176 B2 20150811
DOCDB simple family (application)
DE 2008000262 W 20080213; DE 102007025907 A 20070601; EP 08715488 A 20080213; US 45155608 A 20080213